/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification of Java bytecode.
 *
 * Copyright (c) 2002-2018 GuardSquare NV
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program; if not, write to the Free
 * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package a.gui.proguard.gui;

import javax.swing.filechooser.FileFilter;
import java.io.File;

/**
 * This <code>FileFilter</code> accepts files that end in one of the given extensions.
 *
 * @author Eric Lafortune
 */
final class ExtensionFileFilter extends FileFilter {
    private final String description;
    private final String[] extensions;

    /**
     * Creates a new ExtensionFileFilter.
     * 
     * @param description a description of the filter.
     * @param extensions an array of acceptable extensions.
     */
    public ExtensionFileFilter(String description, String[] extensions) {
        this.description = description;
        this.extensions = extensions;
    }

    // Implemntations for FileFilter

    public String getDescription() {
        return description;
    }

    public boolean accept(File file) {
        if (file.isDirectory()) {
            return true;
        }

        String fileName = file.getName().toLowerCase();

        for (int index = 0; index < extensions.length; index++) {
            if (fileName.endsWith(extensions[index])) {
                return true;
            }
        }

        return false;
    }
}
